diff --git a/src/main/java/org/utplsql/api/ResourceUtil.java b/src/main/java/org/utplsql/api/ResourceUtil.java
index a9568de..c05c5ff 100644
--- a/src/main/java/org/utplsql/api/ResourceUtil.java
+++ b/src/main/java/org/utplsql/api/ResourceUtil.java
@@ -72,6 +72,7 @@ public static List<Path> getListOfChildren(Path resourceAsPath, boolean filesOnl
                         result.add(entryPath.subpath(relativeStartIndex, entryPath.getNameCount()));
                 }
             }
+            resourcePath.getFileSystem().close();
         } else {
             Files.walk(resourcePath)
                     .filter(p -> !filesOnly || p.toFile().isFile())